US3041303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding powder comprising polystyrene, white inorganic pigment and finely divided metal powder
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-08-03
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Granted: 1962-06-26
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Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Edward A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; C08K3/18; C08K3/20; C08K3/22; C08K9/00; C08K9/08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08K2201/00; C08K2201/002; C08K2201/005; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A MOLDING POWDER COMPRISING (A) POLYSTYRENE BLENDED WITH UP TO 20% BY WEIGHT BASED ON THE WEIGHT OF THE POLYSTRENE OF A RUBBERY BUTADIENE-STYRENE COPOLYMER, (B) FROM 0.1 TO 5% BY WEIGHT, BASED UPON THE COMBINDED WEIGHT OF THE POLYSTYRENE AND THE BUTADIENE-STYRENE COPOLYMER, OF A WHITE INORGANIC PIGMENT, AND (C) FROM 0.1 TO 5% BY WEIGHT, BASED UPON THE COMBINED WEIGHT OF THE POLYSTYRENE AND THE BUTADIENE-STYRENE COPOLYMER, OF A FINELY-DIVIDED METAL POWDER, AT LEAST 50% OF WHICH PASSES THROUGH A 40-MESH SCREEN AND IS RETAINED BY A 100 MESH SCREEN.
Claim 2
Dependent Claim
92 words
A MOLDING POWDER COMPRISING (A) POLYSTYRENE BLENDED WITH UP TO 20% BY WEIGHT BASED ON THE WEIGHT OF THE POLYSTRENE OF A RUBBERY BUTADIENE-STYRENE COPOLYMER, (B) FROM 0.1 TO 5% BY WEIGHT, BASED UPON THE COMBINDED WEIGHT OF THE POLYSTYRENE AND THE BUTADIENE-STYRENE COPOLYMER, OF A WHITE INORGANIC PIGMENT, AND (C) FROM 0.1 TO 5% BY WEIGHT, BASED UPON THE COMBINED WEIGHT OF THE POLYSTYRENE AND THE BUTADIENE-STYRENE COPOLYMER, OF A FINELY-DIVIDED METAL POWDER, AT LEAST 50% OF WHICH PASSES THROUGH A 40-MESH SCREEN AND IS RETAINED BY A 100 MESH SCREEN.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |